John lytle



(No Model.)

J. LYTLB.

PIPE WRENCH.

No. 522,795. Patented July 10;'1894.

UNITED STATES PATENT OFFICE.

JOHN LYTLE, OF ITHACA, NEW-YORK.

PIPE-WRENCH.

SPEUIFICATION forming part of Letters Patent No. 522,795, datedJ'uly 10,1894.

Application naa April 14,1894. serai nu. 507.531. oro moan.) i

` To all whom it mctycmwern:

Beit known that I, JOHN LYTLE, of Ithaca, in the county of Tompkins, inthe State of New York, have invented new and useful Improvements inPipeWrenches, of which the follow ing, taken in connection with theaccompanying drawings, is a full, clear, and exact description.

This invention relates to the class of pipewrenches which are providedwith a rigid serrated jaw and with a chain connected to said jaw whichmembers grip between them the pipe or analogous cylindrical article tobe turned. i

The object of the invention is to simplify the construction of thewrench so as to reduce the cost of manufacture and at the same timerender the Wrench convenient and more efficient in its operation, andalso stronger. And to that end the invention consists in the improvedconstruction and combination of parts hereinafter described andspecifically set forth in the claims.

In the annexed drawings Figure l is a side View of a Wrench embodying myinvention. Fig. 2 is an edge View of the same. Fig. 3 is a longitudinalsection on line NX-X- in Fig. 1. Fig. 4 is a detached side View of thejaw, and Fig. 5 is an edge view of a section of the two chains showingthe reinforcing links and crossties thereof.

t Similar letters of reference indicate corresponding parts. y

In my invention I employ a single jaw J-- which I cast or forge in onepiece of steel. Said jaw is elongated and serrated in opposite edges inthe usual manner. Ji-- denotes the handle which I attach to said singlejaw by forming the attaching end of said handle with tongues -hhbetweenwhich the jaw is inserted and fastened therein by rivets or bolts -bb'passing through said tongues and through an orifice -eand notch e in thejaw. In order to sustain the said jaw more securely on the handle I formthe jaw with mortises @ob-d:-l in` opposite sides and shaped tocorrespond to the tongues -hh which are inserted in said mortises. Thebase of the jaw is provided with a notch =-e, through which the rivetlf-e passes and thus prevents lateral displacement of the jawon thehandle -sf-hi Ac-c represent the two chains which I hang on oppositesides of the jaw preferably to the protruding ends of the rivet b. Thesechains I maintain separated from each other throughout their attachedend portions for the purpose of allowing them to straddle the jaw .I-gand obtain a rmer or more direct hold on the pipe -P. 'Ihe freeendportions of the chains y are united by crossties -c-cwhich may consisteither of metal tubes or solid bars of a size to allow either of saidcross-ties to be entered into one of the hooks -a-otformed on oppositeedges of the jaw, which hooks allow the free `ends of thechains to beconnected to either side of the jaw, and the jaw to be applied to eitherside of the pipe. To reinforce the end portions ofthe chains which areseparated from each other, Iprovide said portions with additional links-f- One of the advantages of my wrench consists in the employment of thesingle jaw -J which simplifies the construction and reduces thethickness of the Wrench so as to allow it to be used on a short pipecoupling, besides obtaining a more positive hold upon the pipe by thechains c-*cstraddling said jaw.

What I claim as my invention is= l. The combination of the handle 7L-formed with the tongues -th, the jaw -J inserted between said tonguesand provided with hooks ct-a-q the rivet or bolt -bpassing through thetongues and jaw, and the chains -c=cstraddling the jaw and united attheir free end portions by crossties -cc, substantially as set forth andshown.

2. lThe improved pipe-wrench consisting of a single jaw .In formed inone piece and with the hooks Act-G, mortises -d-din opposite sides, thehandle -h formed with tongues -==h-h' inserted in the mortises of thejaw, the rivet bpassing through said tongues and jaw, and the chains cchung ont-he protruding ends of the aforesaid rivet and separated fromeach other throughout their attached end -portions and united at theirfree end portions by cross-ties dc-c, substantially as described.

3. The combination of the single jaw eI-'- formed with the hooks *ect-adand with the mortises cl-0lin opposite sides and provided with the orice-eand notch -e,

the handle ihrformed with tongues if- -c-cconnected to said jaw atopposite sides thereof and separated from each other at their attachedend portions and provided thereat with the extra reinforcing links f andunited at their free end portions by cross-ties -c-c-, substantially asdescribed and shown.

In testimony whereof I have hereunto signed my name this 11th day ofApril, 1894..

J OI-IN LYTLE. [L. s]

Witnesses:

JOHN J. LAAss, C. L.; BENDIXONA

